Intoxication due to negative canrenone interference in digoxin drug monitoring

Lancet. 1999 Oct 2;354(9185):1176-7. doi: 10.1016/S0140-6736(99)03818-0.

Abstract

Canrenone and spironolactone caused falsely low readings in a common assay for digoxin (AxSym MEIA) due to negative cross-reactivity. Misleading subtarget concentrations were repeatedly reported, and falsely guided drug dosing resulted in a case of digoxin intoxication.

Publication types

  • Case Reports
  • Letter
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Canrenone / blood*
  • Digoxin / blood*
  • Digoxin / poisoning*
  • Drug Interactions
  • Drug Monitoring / methods*
  • Enzyme Multiplied Immunoassay Technique
  • Fatal Outcome
  • Humans
  • Male
  • Medication Errors*
  • Multiple Organ Failure / etiology
  • Sepsis / complications
  • Spironolactone / blood*

Substances

  • Spironolactone
  • Digoxin
  • Canrenone